Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Photo, 1959 Yves Klein at the opening of his exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Photo, 1959 Yves Klein before the inauguration of his exhibition "Vision in Motion - Motion in Vision", Hessenhuis, Antwerp
Photo, January 1957 Yves Klein making a Judo catch during his exhibition "Yves Klein: Proposte monocrome, epoca blu", Galleria Apollinaire
Photo, 1959 Soto during the Opening of the exhibition "Vision in Motion - Motion in Vision", Hessenhuis, Antwerp
Photo, 1959 Jean Tinguely during the Opening of the exhibition "Vision in Motion - Motion in Vision", Hessenhuis, Antwerp
Photo, 1959 Soto during the Opening of the exhibition “Vision in Motion - Motion in Vision", Hessenhuis, Antwerp
Photo, 1959 Yves Klein, Iris Clert and Rotraut at the opening of the exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert